A fast correlation function calculation method for neutron pulse series

The real-time algorithm of correlation calculation is presented for neutron pulse series up to 1 GHz sampling rates based on PC. The method is proposed based on the special structure of the series. Simulation demonstrates that the calculation time of the proposed correlation function algorithm is less than 1 h, the algorithm meets the demand of real-time correlation calculation, which make it possible to detect the quality and abundance of uranium components in real time.